[Bug libstdc++/81338] stringstream remains empty after being moved into multiple times
redi at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Mon Sep 4 16:42:00 GMT 2017
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81338
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Sep 4 16:41:25 2017
New Revision: 251669
URL: https://gcc.gnu.org/viewcvs?rev=251669&root=gcc&view=rev
Log:
PR libstdc++/81338 correctly manage string capacity
Backport from mainline
2017-07-10 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/81338
* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI] (basic_string):
Declare basic_stringbuf to be a friend.
* include/bits/sstream.tcc (basic_stringbuf::overflow)
[_GLIBCXX_USE_CXX11_ABI]: Use unused capacity before reallocating.
* include/std/sstream (basic_stringbuf::__xfer_bufptrs): Update string
length to buffer length.
* testsuite/27_io/basic_stringstream/assign/81338.cc: New.
Added:
branches/gcc-5-branch/libstdc++-v3/testsuite/27_io/basic_stringstream/assign/81338.cc
Modified:
branches/gcc-5-branch/libstdc++-v3/ChangeLog
branches/gcc-5-branch/libstdc++-v3/include/bits/basic_string.h
branches/gcc-5-branch/libstdc++-v3/include/bits/sstream.tcc
branches/gcc-5-branch/libstdc++-v3/include/std/sstream
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